形狀上真的只有一面
字面的一層，也是其他用法借來的那張圖。
adjective · C1
Having only one surface, like a Möbius strip: you can travel over the whole shape without ever crossing to a second side.
單面的
核心畫面
You can start with something that ought to have two sides but only ever shows you one. Walk all the way around it and you never reach the other face, because there is no other face to reach. That picture is literal for a shape, and it is the same picture when a report only ever shows one party, or when a match only ever has one team attacking: you keep looking for the second side and it is not there.
可以先想一個本來該有兩面、卻只給你看到一面的東西。你沿著它走一圈，始終走不到另一面，因為根本沒有另一面可走。用在形狀…更多收起
可以先想一個本來該有兩面、卻只給你看到一面的東西。你沿著它走一圈，始終走不到另一面，因為根本沒有另一面可走。用在形狀上時，這是字面的意思。用在報導或比賽上時，畫面完全一樣：你一直在找另一邊，而它不在那裡。一份報導只放了一方的說法，一場比賽只有一隊在進攻，都是這種「另一邊不見了」的感覺。Two branches
該有兩邊，卻只出現一邊
把「找不到另一面」搬到人和事情上。這是理解上的連結，不是歷史來源的主張。
adjective · B2
Showing or thinking about only one side of a question, so that the picture you are given is unfair to the other side.
偏頗的；片面的